#ifndef BOOST_MPL_HAS_KEY_HPP_INCLUDED #define BOOST_MPL_HAS_KEY_HPP_INCLUDED // Copyright Aleksey Gurtovoy 2003-2004 // Copyright David Abrahams 2003-2004 // // Distributed under the Boost Software License, Version 1.0. // (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // See http://www.boost.org/libs/mpl for documentation. // $Id$ // $Date$ // $Revision$ #include <boost/mpl/has_key_fwd.hpp> #include <boost/mpl/sequence_tag.hpp> #include <boost/mpl/aux_/has_key_impl.hpp> #include <boost/mpl/aux_/na_spec.hpp> #include <boost/mpl/aux_/lambda_support.hpp> namespace boost { namespace mpl { template< typename BOOST_MPL_AUX_NA_PARAM(AssociativeSequence) , typename BOOST_MPL_AUX_NA_PARAM(Key) > struct has_key : has_key_impl< typename sequence_tag<AssociativeSequence>::type > ::template apply<AssociativeSequence,Key> { BOOST_MPL_AUX_LAMBDA_SUPPORT(2,has_key,(AssociativeSequence,Key)) }; BOOST_MPL_AUX_NA_SPEC(2, has_key) }} #endif // BOOST_MPL_HAS_KEY_HPP_INCLUDED